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6950 shader unlocked or 6950 to 6970 unlock fully?

post #1 of 22
Thread Starter 
Which is better to do for a sapphire card? I have 2 of these in crossfire, and want to know if shader or full unlock is best. Can i overclock shader unlocked cards same as fully unlock or will core/memory speed be less?
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post #2 of 22
You can unlock the 6950's shaders and run them at 6950's stock speed for a more safe approach, but you should be able to have it running with the 6970 speeds. The latter is obviously the best , more shaders and more speed
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post #3 of 22
My 2cents would go to, just unlocking shaders.
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post #4 of 22
Thread Starter 
is unlocking shaders only safer? also, what settings should i put my cards at if i only unlocked shaders? when i put voltage at 1.18volts, 900core, 1375 mem, it crashes right after i hit apply.
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post #5 of 22
If i'm not mistaken, not all 6950s were perfect 6970s that were cut back, you may not have the same stability of a 6970 running your unlocked 6950 at the 6970 specs, the card may not like that much speed and crash, so its better to start on the 800Mhz core and go slowly up.
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post #6 of 22
Thread Starter 
whats a good voltage for 900mhz? also, can i flash em to 6970's and just stress test em?
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post #7 of 22
If its the sapphire version, it shouldn't have problems with 900/1375 at stock volts, didn't have problems on mine anyways @900/1450 @stock volts.
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post #8 of 22
Thread Starter 
your only shader unlocked? also, what stock volts? can you tell me ur exact volts on ur card? that u have for 900/1450
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post #9 of 22
Thread Starter 
also, i have +20 power in CCC
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post #10 of 22
Two HIS 6950 here shaders unlocked only. Stable at 900/1400 on both. I did not touch the power slider in CCC at all. It is the memory timing and voltage that scared me away from a full 6970 unlock.
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